I just wanted to post this to show some of the unbelievers that rubber bands do damage coins. I had a stack of Canadian 1 oz' that I was thinking about selling. I stacked them and put a rubber band around them an put them back for about two months. When I pulled them out, more moved them to get to some piece dollars to send to ngc this is what I found. Good lesson I always placed a rubber band around my flips when I send to ngc not now, don't know what to do. The flip was not damaged I checked.
At least it was only a bullion coin. The reason this happened is because vulcanized rubber is infused with sulfur. It might be ok for a brief trip through the mail to the grading company, but I wouldn't take the chance. Anybody else have tips on packing coins to be sent off for grading?
Yeah I know, but never thought it would happen. Just happy it didn't ruin a good coin. Would like to hear of some good substitutes for shipping.
Amazing as I would never have believed it got through the mylar window of the 2X2 . Thanks for the heads up .
I don't think this on was in a 2x2. And it looks like someone dipped it for a long time, making it too shiny, but, the dip did not correct the rubber damage.
so what about the thought of taking the stack of flips when you submit them to be graded and wrapping them with like shrink wrap? You think the people on the other end would hate me.
Well plastic, even mylar, is air permeable. But I suspect it has more to do with direct contact with the coin being concentrated along a fixed line than it has to do with the object causing the contact (the rubber band). Easy way to find out though. Take a coin in a 2x2 or flip, tie a piece of string or thread around it, let it sit for a month or two. I'm betting the same line will be present.
Unless its the lighting, I do not see how a rubber band would produce a negative effect . It looks more like a tape problem.
I posted about this exact same thing a couple months ago, and that happened to the coin during a short trip through the mail. https://www.cointalk.com/threads/rubber-band-toning-a-coin-through-mylar.261712/
interesting thread, it went into a more in depth chemical properties discussion than what I cared to read about, but interesting.
Eegads, I use rubber bands all the time for keeping bundles of types of coins together. Though looking at your 2x2 and the crumpled edges maybe it was far too tight. I keep my rubber bands fairly lose and rotate them to get all sides. Now I'm going to go check everything.
On a similar topic, I remember watching a video during the 2008-2011 silver run up which recommended that stackers place their silver rounds in PVC pipes (I think maybe 2" but don't remember) and then make them look as though they are part of the plumbing. Apparently they fit perfectly. I did not do it but I now have to wonder about the condition of the silver for any who did.
I have others in rubber bands that are perfectly fine. I would not risk it. From now on it will be air tights and/or tubes
